from flask import current_app
from flask import g, jsonify
from flask import render_template
from flask import request
from flask import session
from werkzeug.utils import redirect

from info import constants
from info import db
from info.models import Category, News
from info.utils.image_storage import storage
from info.utils.response_code import RET
from . import profile_blue
from info.utils.common import user_login_data


@profile_blue.route('/info')
@user_login_data
def get_user_info():
    """获取用户信息"""
    """
    1. 获取到当前登录的用户模型
    2. 返回模型中指定内容
    """
    user = g.user
    if not user:
        # 用户未登录，重定向到主页
        return redirect('/')

    data = {
        "user": user.to_dict(),
    }
    # 渲染模板
    return render_template("news/user.html", data=data)


@profile_blue.route('/base_info', methods=['GET', 'POST'])
@user_login_data
def get_base_info():
    """用户基本信息设置"""
    """
    判断请求方式
    获取参数
    校验参数
    设置用户模型数据
    将 session 中保存的数据进行实时更新
    返回响应
    """
    # 判断请求方式
    if request.method == 'GET':
        data = {
            "user": g.user.to_dict(),
        }
        # 渲染模板
        return render_template("news/user_base_info.html", data=data)

    # 获取参数
    data_dict = request.json
    nick_name = data_dict.get("nick_name")
    gender = data_dict.get("gender")
    signature = data_dict.get("signature")

    # 校验参数
    if not all([nick_name, gender, signature]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数不全")

    if gender not in ['MAN', 'WOMEN']:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    # 设置用户模型数据
    user = g.user
    user.nick_name = nick_name
    user.gender = gender
    user.signature = signature
    try:
        db.session.commit()
    except Exception as e:
        db.session.rollback()
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")

    # 将 session 中保存的数据进行实时更新
    session["nick_name"] = nick_name

    # 4. 返回响应
    return jsonify(errno=RET.OK, errmsg="更新成功")


@profile_blue.route('/pic_info', methods=["GET", "POST"])
@user_login_data
def pic_info():
    """上传用户头像"""
    user = g.user
    # 判断请求方式
    if request.method == 'GET':
        data = {
            "user": user.to_dict()
        }
        # 渲染模板
        return render_template('news/user_pic_info.html', data=data)

    # POST
    # 1. 获取到上传的文件
    try:
        avatar_file_name = request.files.get("avatar").read()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="读取文件出错")

    # 2. 再将文件上传到七牛云
    try:
        url = storage(avatar_file_name)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")

    # 3. 设置用户模型相关数据
    user.avatar_url = url

    # 4. 将数据保存到数据库
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存用户数据错误")

    # 5. 返回上传的结果<avatar_url>
    return jsonify(errno=RET.OK, errmsg="OK",
                   data={"avatar_url": constants.QINIU_DOMIN_PREFIX + url})


@profile_blue.route('/pass_info', methods=["GET", "POST"])
@user_login_data
def pass_info():
    """修改密码"""
    if request.method == "GET":
        return render_template('news/user_pass_info.html')

    # 1. 获取到传入参数
    data_dict = request.json
    old_password = data_dict.get("old_password")
    new_password = data_dict.get("new_password")

    if not all([old_password, new_password]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 2. 获取当前登录用户的信息
    user = g.user

    if not user.check_passowrd(old_password):
        return jsonify(errno=RET.PWDERR, errmsg="原密码错误")

    # 更新数据
    user.password = new_password
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")

    return jsonify(errno=RET.OK, errmsg="保存成功")


@profile_blue.route('/collection')
@user_login_data
def user_collection():
    """用户新闻收藏列表"""
    # 获取页数
    p = request.args.get("p", 1)
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1

    user = g.user
    collections = []
    current_page = 1
    total_page = 1
    try:
        # 进行分页数据查询
        paginate = user.collection_news.paginate(p, constants.USER_COLLECTION_MAX_NEWS, False)
        # 获取分页数据
        collections = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    # 收藏列表
    collection_dict_li = []
    for news in collections:
        collection_dict_li.append(news.to_basic_dict())

    data = {
        "total_page": total_page,
        "current_page": current_page,
        "collections": collection_dict_li
    }
    return render_template('news/user_collection.html', data=data)


@profile_blue.route('/user_news_release', methods=['GET', 'POST'])
@user_login_data
def user_news_release():
    """用户新闻发布"""
    if request.method == "GET":
        categories = []
        try:
            # 获取所有的分类数据
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)

        # 定义列表保存分类数据
        categories_dict_li = []
        for category in categories:
            categories_dict_li.append(category.to_dict())

        # 移除`最新`分类
        categories_dict_li.pop(0)

        data = {
            'categories': categories_dict_li
        }
        # 返回内容
        return render_template('news/user_news_release.html', data=data)

    # 1. 获取要提交的数据
    title = request.form.get("title")
    source = "个人发布"
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")

    # 1.1 判断数据是否有值
    if not all([title, source, digest, content, index_image, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数不全")

    # 1.2 对分类id转int，查询数据库有否有
    try:
        category_id = int(category_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")
    try:
        Category.query.get(category_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据库查询失败")

    # 2. 将标题图片上传到七牛
    try:
        index_image = index_image.read()
        image_file_name = storage(index_image)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg="图片上传失败")

    # 3. 初始化新闻模型，并设置相关数据
    news = News()
    news.title = title
    news.digest = digest
    news.source = source
    news.content = content
    news.index_image_url = constants.QINIU_DOMIN_PREFIX + image_file_name
    news.category_id = category_id
    news.user_id = g.user.id
    # 1代表待审核状态
    news.status = 1

    # 4. 保存到数据库
    try:
        db.session.add(news)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")

    # 5. 返回结果
    return jsonify(errno=RET.OK, errmsg="发布成功，等待审核")


@profile_blue.route('/news_list')
@user_login_data
def user_news_list():
    """用户新闻列表"""
    # 获取页数
    p = request.args.get("p", 1)
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1

    user = g.user
    news_li = []
    current_page = 1
    total_page = 1
    try:
        paginate = News.query.filter(News.user_id == user.id).paginate(p, constants.USER_COLLECTION_MAX_NEWS, False)
        # 获取当前页数据
        news_li = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []

    for news_item in news_li:
        news_dict_li.append(news_item.to_review_dict())
    data = {
        "news_list": news_dict_li,
        "total_page": total_page,
        "current_page": current_page
    }
    return render_template('news/user_news_list.html', data=data)
